Window-polishing machine



J. J. PETERSON wnmdw POLISHING menus NOV.

Original Filed March 18. 1921 INVENTQR i ATTORNEY Patented Nov. 11, 1924.

ENT OFFICE.

JOHN J. PETERSON, OF STEUBENVILLE, OHIO'.

WINDOW-POLISHING MACHINE,

Application filed March 18, 1921, Seriafl No. 453,230. Renewed April 12,1924.

To all whom it may concern:

Be it known that 1, JOHN J. PETERSON, a citizen of the United States, residing at Steubenville, in the county of Jefferson and State of Ohio, have invented new and use ful Improvements in Window-Polishing Machines, of which the following is a specification.

This invention relates to means for cleaning window panes and similar surfaces, and more particularly to what I term a window polishing machine.

One of the main objects of the invention is to provide a machine of the character stated of simple construction and operation which is adapted to clean and polish window panes and similar surfaces without the use of a washing solution. Another object is to provide a machine of the character stated which may be readily adjusted so as to have its angle to the. operating handle varied to suit conditions. Further objects will appear from the detailed description.

In the drawings:

Figure 1 is a top plan view of a machine constructed in accordance with my invention.

Figure 2 is a section taken substantially on line 2-2 of Figure 1.

Figure 3 is a section taken substantially on line 33 of Figure 1.

Figure 4 is a fragmentary detail section through the handle.

Figure 5 is a detail of the mounting of the cleaning roller.

Figure 6 is a detail of the means for supporting the dust receiving tank or receptacle.

In constructing the machine I provide a casing 1 within which is mounted a cleaning brush 2, this brush being positioned adjacent to the back wall of the casing and extending longitudinally of the same. Adjacent to the front wall of the casing and in spaced parallel relation to brush 2 I mount a polishing roller 3. A cleaning roller 4 is mounted behind polishing roller 3 and is held pressed against the same by means of an expansion spring 5 mounted in a slot 6 of a bearing casing 6 secured on the end wall of the casing, this spring being confined 7 between a bearing block 7 operating in the slot and in which the spindle of roller 3 is rotatably supported; and a follower plate 8 operating in slot 6 and adjusted by a screw 9 threaded through a lug or plate 10 at the upper end of the casing 6 A guard plate 11 extends about the upper or inner portion of brush 2, this plate extending the full length of the casing and being provided at its forward edge with a forwardly and upwardly inclined element forming a scraper 12 positioned for contact with cleaning roller 4. A guide and scraping member 13 extends the length of the easing above and in back of roller 3, the lower edge of this member being in contact with the roller. Material from brush 2 is discharged into a receivingtank 14 supported within the casing between the brush and roller 3, this tank being centered by pins 15 projecting from the inner face of the opposite ends of the casing, and secured in position by spring pressed pins 16 projecting through the ends of the casing and the ends of the tank, these pins being carried by leaf springs 17 secured on the outer faces of the ends of the tank. As will be noted more clearly from Figure 2, the side walls of the tank are curved so as to be substantially concentric with brush 2 and roller 3 and a space 18 is provided between the upper edge of the wall of the tank adjacent to the brush and the plate 11, dust and particles of foreign materials removed from the window pane being discharged through this space into the tank.

In operation, the machine is moved over the surface to be cleaned, thegreater part of the dust and other foreign materials being removed by brush 2 and discharged into tank 14. Roller 3 completes the operation. by effectively removing any particles of dust which may not be removed by'brush 2, and by polishing the surface of the window pane. Foreign materials are removed from polishing roller 3 by means of member 13 which directs these materials against scraper 12 and this scraper directs the foreign materials into tank or receptacle 14. Any foreign materials which are not removed from roller 3 by member 13 willbe removed by cleaning roller 4 from which these materials are removed by the scraper l2 and are directed by member 13 into the tank 14.

Casing 1 is provided at its upper. rearward portion with a housing 19 within. which is positioned an electric motor 20 of suitable typefor driving the brush and rollers. Shaft 20 of this n'i'otor projects through one end of the casing and is provided with a spur pinion 20" secured on the shaft. Pinion 20" meshes with a spur gear 21 of relatively great diameter secured upon a stub shaft 22 rotatably mounted in the end of casing l. and in a supplemental casing 23 provided at the end of the main casing, this supplemental casing forming a gear housing. Spur pinion-s 245, 25 and 26 are secured on the spindles of brush 9;, and rollers 3- and l, respectively,- and mesh with gear 21 for rotating the brush and rollers. As will be understood, if desired, tl'iough not necessarily, si-iitable IQClllClllg gearing may be provided between the motor and gear 2]: for reducing the speed of rotation of the brush and the rollers relative to the motor, though this is not necessary where a; low speed motor is employed.

For manipulating the machine I provide a tubular handle 27 provided at its lover end with a U-shaped yoke 28 which. straddles motor housing 19 and is pivot-ally se- Clll'G'Ll to the ends of this housing by means of pivot screws 29. The handle 2'? includes a hollow cylindrical body 30 and an outer T shaped member 31 provided at its inner end with a reduced neck 32 which fits snug ly into the outer end of body 30. Neck 32- is provided in its outer face with a plurality of radially disposed recesses 33 adapted to receive a locking pin 34 carried at the upper end of a lever 35 pivoted at 36 011 member 30, the upper end of this lever being normally forced inwardly toward the body of the handle by an expansion spring 37 and pin 3 operating through a bore 38 in the body of the handle.- This provides simple and eliicie'nt means whereby member 31 may be readily secured in rotary adjustment in member 30. b

An operating rod 89 extends through the body 30 of the handle and through the bight portion of yoke 28, the upper end of this rod being secured at d0 between lugs depending from the under-face of a web element all extending across the stem portion of member 31 at the upper end of neck 32. A bevel pinion 42 is secured on the lower end of rod 39 and meshes with a rack e3 secured on the upper face of housing 19 and disposed concentric with the axis of pivot members or screws 29. By rotating member 81 the angular relation of casing 1 to the handle may be varied, as indicated in Figure 3, to suit conditions. The rack and pinion, and associated parts, also provide simple and efficient means whereby the handle may be locked to the casing when desired.

If desired, thoughnot necessarily, a suit-- able supporting roller 4A- may be provided adjacent each end of the back wall of casing 1. This roller is carried by a fork 4:53 secured on the lower end of a stem slidable through two spaced lugs 51 pro jecting from the wall of the casing. A collar 52 is secured on this stem and an eX- pansion spring 53 is mounted about the stem and confined between this collar and the upper lug 51. This provides simple and efficient means for supporting the weight of the casing upon rollers do while permitting movement of the casing toward and away from the surface being cleaned, as circumstances may require.

What I claim is-z A 1. In a. machine of the character described, acasing, a brush rotatably mounted in the casing and projecting beyond the same, a polishingroll-er rotat-ably mounted in the casing in advance of the brush, means for rotating the brush and roller. a re ceptacle supported between the brush and roller a guard plate fitting about the inner portion of the brush and provided at its inner edge with an upwardly and forwardly directed element the inner edge of said guard plate being spaced above the adjacent wall of the receptacle and means for removing foreign materials from said roller and directing the same against the upwardly and forwardly extending element of the guard plate, said element being disposed to direct these materials into the receptacle.

2.1n a machine of the character described, a casing a brush rotatably mount ed in the casing and projecting beyond the same, a polishing roller r'otatably mounted in the casing in advance of the brush, means for rotating the brush and roller, a receptacle supported between the brush and roller, a guard plate fitting about the inner portion of the brush and provided at its inner edge with an upwardly and forwardly directed element, the inner edge of said guard plate being spaced above the adjacent wall of the receptacle and a scrape:- contacting with the roller and disposed to direct material discharged from the roller against theelement of the guard plate, said element acting to direct this' material into the receptacle.

3 In a machine of the character described, a casing, a brush mounted in the casing, a polishing roller mounted in. the casing in spaced relation to the brush, a receptacle supported between the brush and the roller, a cleaning roller contacting with said polishing roller, a guard plate extending about the brush, means for removing foreign material from the polishing roller, means for removing foreign material from the cleaning roller and directing it into the receptacle, the last mentioned means also acting to direct material discharged from the polishing roller into said receptacle, and means for rotating the rollers and brush.

4. In a machine of the character described, a casing, a brush mounted in the casing, a polishing roller mounted in the casing in spaced relation to the brush, a receptacle supported between the brush and the roller, a cleaning roller contacting with said polishing roller, a scraper contacting with the cleaning roller, a scraper contacting with the polishing roller and positioned to discharge foreign materials removed from said polishing roller against the cleaning roller scraper, said cleaning roller scraper being disposed to direct into the receptacle material discharged from both of the rollers, and means for rotating the rollers and brush.

5. In a machine of the character described, a casing, a brush mounted in the casing, a polishing roller mounted in the casing in spaced relation tothe brush, a receptacle supported between the brush and the roller, a guard plate extending about the inner portion of the brush and terminating above the inner edge of the adjacent wall of said receptacle, a member extending upwardly and forwardly from the inner edge of the guard plate, a scraper contacting with said roller and disposed to direct material discharged from the roller against said member, and means for rotating the roller and brush.

6. In a machine of the character described, a casing, a brush mounted in the casing, a polishing roller mounted in the casing in spaced relation to the brush, a receptacle supported between the brush and the roller, a guard plate extending about the inner portion of the brush and terminating above the inner edge of the adjacent wall of said receptacle, a cleaning roller contacting with the polishing roller, a scraper member extending upwardly and forwardly from the inner edge of the guard plate and contacting with said cleaning roller, a scraper contacting with the polishing roller and disposed to direct material discharged therefrom against said member, and means for rotating the brush and the rollers.

In testimony whereof I afiix my signature.

J. J. PETERSON. 

